Press



Patented May 1 9, 1925.

UNITEDSTATES PATENT OFF-ICE;

JOHN J. BERRIGAN, or onnmeo, ILLINOIS, ASSIGNOR or ONE-THIRD To JOHN B. 'BERRIGAN AND NE-TH D T0 KATHERYNE P. MALON, BOTH or CHICAGO,

ILLINOIS.

PRESS.

' Application filed August 28,1924; Serial No. 734,557.

To all whom may concern:

Illinois, have invented a certain new and; useful Improvement in Presses, of whlch I the following is a specification.

This invention relates to press constructions, and particularly to the details of construction of a press, which while preferably hydraulic, may beoperated by other means.

Onefobject of my invention is to provide a construction by means of which the bottom members of the press are mounted so as to facilitate discharge from the press after the pressing operation is. complete and so as to prevent accidental discharge prior to that time Another object .is to provide a press having movable bottom members which are mounted in thepress to permit some movement but to prevent accidental displacement.

Other objects will appear from time to time throughout the specification and claims.

.My invention is illustrated more or less diagrammatically in the accompanying drawing, wherein:

Figure 1 is a vertical cross section of a portion of the-press in the open position before pressing has commenced; Figure 2 is a similar view after pressing has been carried out; r

Like parts are designated by like characters throughout.

A is a track member upon which the.

platen and partitions of the press. are sup ported and adapted to move. There may be any suitable. number of such tracks but I'prefer to use one at each side of the press.

'13 indicatesone of the side walls or casing members of the it isenclosed.-

C is one of the platens which is pressed: laterally so as to move the press parts and toeffect the pressing movement; 'As above stated it may be moved by hydraulic or any other suitable means. "These are not shown part ofthe here as their details form no presentginvention.

Mounted=within the press is any suitable number of partition: members D. These members preferably consist of av central plate portion to each side ofwhich is fastened aperforat-ed plateD :These plates D are spaced away from the plate D and therefore provide a drainage spacethrough press by means of which which liquid matter pressed from the Inaterial being pressed may be discharged along the partition and out through the open bottom, indicated in each partition at D D I r I Mounted adjacent the bottom of each of the partitions is a supporting member E. There may be several of these members across the partition, but in the press I preferto use three or four. They might, how ever, be replaced by a continuous member extending all or part of the way across the partition. The upper surface of this memher is generallyon the'same plane as the upper. surface of the track A.

Upon eachof the members E is loosely mounted a bottom plate F. This plate extends all the way across the press and is practically. the same width as the partitions. It is preferably provided with a. somewhat sharpened upper edge F Secured to each of the partitions is a short chain G. This chain at one end is fastened to the partition and at the other end is fastened to a pin G in the outer edge of the plate F. There are two. such chains for each plate, that is, one at each end.v

Secured to the partitions on each side adjacent their bottoms are chains H. These chains: fasten the partitions together and space them, and prevent their displacement. Other chains H -H are mounted atsuitable points-throughout the height of the partitions: In practice usually four chains are mounted on each side of thepartition.

f- AlthoughI have shown an operative device, still itwill be obvious that many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention; and'I wish, therefore, thatmy showing be taken as in a sense diagrammatic.

,- The use and operation of my invention are as follows:

- .The press as shown in Figure 1 is in the open positions In that position it is filled. The material may be put directly into the press or it maybe put therein in bags or other containers; I When the press is filled the weight of the material rests largely on the movably mounted bottom plates F.

As the press is closed the material presses against these bottom plates and there is a tendency to; force the plates from their original inclined positions down to the horizontalx If this qtendency were notfiresisted the plateswould-fallto a horizontal positionand would thus prevent the closing -ot thepressw In sodoingiif the bottom-edgesof the partitions were not fastened bychains so that their distance apart is positively limited, the partitions themselves might be opento permit the downward movement of one or more of the bottonrpla tes' of the press",

and thus the device will not operate satisfactorily; 5

lii' ord'er to resist thesetendenc'ies, the pa'rtitions' have" chains between them and theseeha ins positively limit the possible sep; 1

its next partition, and second because the bot-tomot' the partitions are fa'stenedspreading; and thus the forc e'exerted' upon the bottom plate caused by -''forcing it to the horizontal, tends 'to "tEOrC e it' to the vertical po'sition 'asit is only free tomove "in that direction Thus as the 1 press is closed the bottom pla ternoves to the position shown in Figure- 2, generally as-the pressing is com-= pleted, moving-to a =complet e vertical posi tiorr and= lying fiat against the partition whiclr-its npper edge originally contacted: In: this position, when the press is opened again for discharge, thebottom plate is still held in thewerti'calposition and the contents" of the press'ca-n beftreely discharged from the bottom.

I claim:

1. Iiia press,"'-mea'ns forenerting pressure uponthecontents of said press, a generally open-bottom and a closing platetherefo'r adapted to supportthecontents of the-press within the press," means forlimiting-.the= downwardinovement of said plate. I

2. 111a press; means for -exertingipressi'ire upo'ii'the contents of said pre'ss,-a generallyopen bottom a-nd a "closing platetherefor adaptedto support the contents of the presswijthin" the press, means for limiting the downwardrotational movement of said plate.

3511i a press, means foriexerting pressure upon the contents of said pres's',=a generally openbottoin and a closing plate therefor adapted to support'the contents of thepre'ss within"thepress, means for limiting the downward movement'of said plate, said means including a member fixed to=a part of said 1 press'andto one side of 'saidplate intermediate :its ends.

4. 111 a press-means for exertin'g pressure upon the contents of said pressa generallyopen bottom "and a closing-plate therefor adapted 'to support the" contents of the press within the press; means {tor limiting the downward 5 movement of said plate, said means including a support for one edge of saidplate and including a member fixed to t a part of said-press and to one-side or said plate intermediate its ends.

5. In a press, means for exerting pressure upon the contents of said press, a generally open'vbottom anda closing plate therefor adapted to support the contents of the press within the press, said plate adaptedthroughout the major portion of the pressing cycle to occupy an inclined p0s1tioIr,*and means for limiting the downward movement 01 said plate, said means" including a unem ber faste'nedto the side ofsaidplate inter-- mediate the upper and lower edges and i'astened also-to a part of saidprcss:

6. 'In-a. pressya inovable partitions nieans for -'eXert-in g pressure upon the contents of said press, closing plates for said presson either side' of said partition adapted -'to support the contents of the PIQSSWVitliiD the p1ess,-and means "fordimiting the downward move ment 'of said plates, said means including supporting'means mounted onparts of said andsaid pressnnd attached to saidpla'tes interme-T press adapted to support said plates, add1t1ona'l means attachedto parts of diate their ends. 7. In a "P 36555 21 mo-vablepartition, and

means for exerting :pressure upon the contents of said'pressya generally open bottom,

andcl'osing plates 'for said press adaptedto support the contents of the' press within the press, aid plates adapted during the mag or portion OI 'ille pressing cycle to occupy 'an inclined position, said'plates beingon either side of said i partition, I and means "for limiting the downward movement of said plates, said means' including" supports for 'said plates upon which their lower e(lges nor-= iii-ally irest, and additional means "intermediate" the upper and lowered ges of said plates fastened to said plates and=to parts ofsaid= pressi SJ-In a press; a"platen"ada'pted""to be moved to exert pressure iH thQ-PIG SS, and partitions in" said press," members joining such partitions and limiting their separation, and amovable bottom members between said partitions"ada pted 'to close-the bottomof the 1 space therebetween' and to support the contentsof'the press-within the press;and'being attached to one of the partitions by a member adapted to limitthe movement of such bottom plate,-and a supportingmember oneach partition upon which the lower edge of the' said bottom plate rests.

9. In a pressga movable plate adapted to support the' contents of thepress within the press, said plate being mounted'betweenop posite' pressing members of said-press and generally I open bottom "and adapted normally to lean with one edge a must oneof said members and the other e go against the other of said members and means for limiting the movement of the lower edge of said plate away from the pressing members which it normally contacts.

V 10. In a press, a movable plate adapted to support the contents of the press Within the press, said plate being mounted between opposite pressing members of said press and adapted normally to lean with one edge against one of said members and the other edge against the other of said members and means for limiting the movement of the lower edge of said plate away from the pressing member which it normally contacts, said means including a member fixed to a part of said press and one side of said 2 plate.

11. In a press, a pair of platens an d a movable plate mounted between opposite pressing ,members and adapted normally to lean with one edge against one of said members and the other edge against the other of said members and to retain the contents of the press within the press in combination with means for limiting the movement of the lower edge'o'f said plate away from the pressing member which it normally contacts, said means including a chain fastened at one end to part of said press and at the other end to said plate there being one of such chains at each end of said p ate. I

Signed at Chicago, county of Cook and State of Illinois, this 23rd 1924.

JOHN J. BERRIGAN.

day of August, 

